form_field_userptr(3X) form_field_userptr(3X)
NAMEform_field_userptr - associate application data with a
form field
SYNOPSIS#include<form.h>
int set_field_userptr(FIELD *field, void*userptr);
void *field_userptr(const FIELD *field);
DESCRIPTION
Every form field has a field that can be used to hold
application-specific data (that is, the form-driver code
leaves it alone). These functions get and set that field.
RETURNVALUE
The function field_userptr returns NULL on error. The
function set_field_userptr returns one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
SEEALSOcurses(3X), form(3X).
NOTES
The header file <form.h> automatically includes the header
file <curses.h>.
PORTABILITY
These routines emulate the System V forms library. They
were not supported on Version 7 or BSD versions.
The user pointer should be a void pointer. We leave it as
a char pointer for SVr4 compatibility.
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new
curses by Eric S. Raymond.
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